8.0.20 SR4

What's Changed

• Small fix for WebAuthenticator TaskCanceledException API docs by @jfversluis in #21040
• [Windows] Ensure consistent background colors for UI test cases by @Foda in #21022
• [Windows] Round item size in GridView by @Foda in #21142
• [Android] System Fonts fix by @kubaflo in #20961
• [testing] Cleaning up TemplateTests iOS simulator issues by @ivanpovazan in #20817
• [testing] Add CollectionView MemoryLeak test by @rmarinho in #21237
• [Windows] Add scrolling tests for virtualization w/ Datatemplates by @Foda in #20954
• [Android] Correctly scale Button image by @jsuarezruiz in #19834
• [android] fix memory leak in TabbedPage by @jonathanpeppers in #21218
• [XAML] Allow using x:Type and type literals interchangeably in certain scenarios by @simonrozsival in #20915
• Optimize performance of Flex.Item by @symbiogenesis in #20034
• [ios] fix memory leak in RadioButton by @jonathanpeppers in #21151
• Update Template Shell Foreground colour by @licon4812 in #20152
• [Windows] Fix FontImageSource resize behavior by @Foda in #21212
• Throw error when pushing without wrapping into navigation page by @kubaflo in #20155
• [ios] avoid duplicating CALayer.Sublayer arrays by @jonathanpeppers in #21308
• [C] use ResourcesChanged to propagate Theme by @StephaneDelcroix in #21229
• [ci] Fix APIScan by @rmarinho in #21358
• [XAML] GetValueSource by @StephaneDelcroix in #19563
• Update Styles.xaml on Multi Project by @PureWeen in #21363
• Make PopLifeCycle more reliable by @PureWeen in #21380
• Removed vestigial UpdateContentLayout() method left over from Forms by @hartez in #18856
• Change activity attributes by @Redth in #20653
• [XAML] Fix PropertyChanged on idx for compiledbindings by @StephaneDelcroix in #21366
• [XAML] Improve warnings when binding cannot be compiled by @simonrozsival in #21281
• [XAML] Only show x:DataType warnings when using NativeAOT by @simonrozsival in #21418
• Still measure children if size is known on CV by @PureWeen in #21409
• [Windows] Cache full app package file path by @MartyIX in #21246
• [android] Add null check to help with #21393 by @rmarinho in #21432
• [macOS] Make window overlay to redraw correctly during window resizing by @MartyIX in #21371
• Fix for WebView Error when changing page with WebView loading a page by @dustin-wojciechowski in #21436
• [android] avoid OnLayout() for Label by @jonathanpeppers in #21291
• [controls] improve perf of "merged" ResourceDictionary lookups by @jonathanpeppers in #21334
• Fix display of ActionSheet in modal view on Windows by @japarson in #21295
• [Windows] Ensure images in buttons never scale up, only down by @Foda in #21463
• [Windows] Add crash dumps as artifacts to tests by @Foda in #21493
• [xaml] improve performance in debug-mode by @jonathanpeppers in #21460
• [C] fix a leak in VSG by @StephaneDelcroix in #21484
• fix 21503 by @StephaneDelcroix in #21524
• [Android] Span line height fix by @kubaflo in #20352
• [Android] Fix Ripple effect with custom background (alternative to #17821) by @jsuarezruiz in #20412
• re-fix 21525 by @StephaneDelcroix in #21578
• Resizetizer issues fixes - nuget bumps by @moljac in #16100
• [C] remove listener on changing MainPage by @StephaneDelcroix in #21616
• Don't worry about the size of the text by @PureWeen in #21628
• Add better exception if user opens second activity by @PureWeen in #21492
• Making sure FindMauiContext fallbacks to default for the title icon i… by @atoghyani in #21519
• IndicatorView IndicatorTemplate Binding by @VladislavAntonyuk in #19004
• Set Views used for CarouselView to Match Parent by @PureWeen in #21662
• [Windows] Prevent image from covering text in buttons if the image is too big by @Foda in #21516

Tests

• [Testing] Add legacy ScrollView UITests by @jsuarezruiz in #19054
• Move 10234 to Appium by @PureWeen in #21471
• [main] Update dependencies from dotnet/xharness by @dotnet-maestro in #21424
• Update BlazorWebView Device Tests to have longer timesouts and more retries by @Eilon in #21318
• Find failing Frame tests in CI by @PureWeen in #21287
• Fix Namesapces on Frame DeviceTests by @PureWeen in #21311
• [testing] Ignore failing tests by @rmarinho in #21266
• [Testing] Updated to latest RC.6 of Appium by @jsuarezruiz in #20694
• Remove check allocation tests from core by @PureWeen in #21283
• Update Windows App SDK by @mattleibow in #21162
• Update Win2D by @mattleibow in #21144
• [main] Update dependencies from dotnet/xharness by @dotnet-maestro in #21133
• Disable auto updating on device and better prepare logcat by @PureWeen in #20732

Docs

• Add remark Screenshot Quality only applies to JPG by @jfversluis in #21610
• Make the dev docs more betterer by @stephen-hawley in #21467
• Add install mono step to macOS setup guide by @jkurdek in #21433
• Document ICanvas by @jknaudt21 in #20881
• Update repo documentation to reference Policy Service instead of FabricBot by @jeffhandley in #21063
• Bump editorconfig csharp_prefer_braces down to suggestion by @jfversluis in #21041

Dependency Updates

• [main] Update dependencies from dotnet/xharness by @dotnet-maestro in #21556

New Contributors

• @licon4812 made their first contribution in #20152
• @jkurdek made their first contribution in #21433
• @stephen-hawley made their first contribution in #21467
• @atoghyani made their first contribution in #21519

Full Changelog: 8.0.14...8.0.20